随着城市人口和经济、社会活动的高度集中,现代化交通运输和大工业生产的发展,能源需求的增长和空间技术的出现,噪声对人类生活构成了日益严重的潜在威胁,成为环境科学所面临的重大研究课题之一。众所周知,长时间处于85分贝以上的噪声环境中,就会给人体生理心理带来不良影响,而达到175分贝时则可使人立即丧生。美国曾计划研制超音速运输机,经过各方面评价后, With the urban population and the high concentration of economic and social activities, the development of modernized transportation and large-scale industrial production, the growth of energy demand and the advent of space technology, noise poses a growing potential threat to human life and has become a threat to environmental science One of the major research topics. It is well-known that long-term exposure to noise above 85 dB will adversely affect the physiology and psychology of the human body, while up to 175 decibels may immediately cause an immediate loss of life. The United States had planned to develop supersonic transport aircraft, after various aspects of evaluation,